S.J. King Books in Order
S.J. King has written 22 books, published between 2020 and 2025. The first book is The Secret Explorers and the Comet Collision (2020) and the newest is The Aztec Adventure (2025). Publication order is the reading order below. 14 of the 22 books listed here are in the Secret Explorers series, which has its own page: Secret Explorers books in order.
- Books
- 22
- Published
- 2020–2025
S.J. King is the author of the Secret Explorers and Timekeepers series, with 22 books published from 2020 to 2025. The Secret Explorers and the Comet Collision (2020) is the first title. Four Secret Explorers books appeared in 2020, and later Secret Explorers titles include the Plant Poachers, the Smoking Volcano and the Ice Age Adventure. The Aztec Adventure (2025) is the most recent book.
How many S.J. King books are there?
S.J. King has 22 books, released between 2020 and 2025. They include 2 separate series.
S.J. King Books in Publication Order
The table lists all 22 S.J. King books in the order they were published, with the release year and how many independent book listings confirm each title. Catalogue data as of September 2026.
- 12020–1/4
- 22020–1/4
- 32020–1/4
- 42020–1/4
- 52021–1/4
- 62021–1/4
- 72021–1/4
- 82021–1/4
- 92022–1/4
- 102022–1/4
- 112022–1/4
- 122023–1/4
- 132023–1/4
- 142023–1/4
- 152023–1/4
- 162023–1/4
- 172024–1/4
- 182024–1/4
- 192024–1/4
- 202025–1/4
- 212025–1/4
- 222025–1/4
S.J. King series in order
Each series linked below has its own reading-order page.
- Secret Explorers books in order 14 books
- Timekeepers books in order 8 books
Do you have to read S.J. King books in order?
You only need to read S.J. King books in order within each series: the books listed here span 2 separate series, and each series has its own publication order.
Where to start with S.J. King
Start with the first book of the S.J. King series you want to read: Secret Explorers starts with The Secret Explorers and the Comet Collision (2020) and Timekeepers starts with First Flight (2023). The earliest catalogued title overall is The Secret Explorers and the Comet Collision (2020).
What is the newest S.J. King book?
The Aztec Adventure (2025) is the newest S.J. King book released so far.
Is there a new S.J. King book coming?
No next S.J. King book is announced in the catalogue, which is a gap in the listings it merges rather than a sign that the run has ended.
S.J. King at a glance
- Still publishing
- S.J. King published a book as recently as 2025.
- Release pace
- S.J. King books have appeared more than one a year on average.
- Busiest decade
- Most S.J. King books, 22 of 22, were published in the 2020s.